jointed goatgrass

 Plants: Grass or Grasslike
Liliopsida > Cyperales > Poaceae > Aegilops cylindrica Host
Synonym(s): jointgrass
Jointed goatgrass is a winter annual that can reach 4 ft. (1.2 m) in height. The leaves are alternate, up to ½ in. (1.2 cm) wide with thin hairs along the margins, sheath openings and auricles. The ligule is short and membranous. Flowering occurs in May to June, when the plants produce red (when mature) or straw-colored spikes. Spikes are cylindrical and contain 2-12 spikelets per spike. The uppermost spikelets have extremely long awns. Jointed goatgrass is native to southern Europe and western Asia. This species is known to hybridize with wheat.

28 records

 

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Image Descriptor Description Photographer
5306050 Diagram or Graphic Hitchcock, A.S. (rev. A. Chase). 1950. Manual of the grasses of the United States. USDA Misc. Publ. No. 200. Washington, DC. USDA PLANTS Database
1149027 Feature(s) compared to wheat USDA APHIS PPQ Archive
1459179 Feature(s)

auricles

 Steve Dewey
1459184 Flower(s) Steve Dewey
5387073 Flower(s)

inflorescences.

 Joseph M. DiTomaso
5366259 Foliage K. George Beck & James Sebastian
1459178 Foliage Steve Dewey
5366260 Fruit(s)

jointed goatgrass (left) vs. downy brome (right) seed heads

 K. George Beck & James Sebastian
5366256 Fruit(s)

seed heads

 K. George Beck & James Sebastian
5366257 Fruit(s)

seed heads

 K. George Beck & James Sebastian
5366258 Fruit(s)

Jointed goatgrass (left) vs. Downy brome (right) seed heads

 K. George Beck & James Sebastian
1459182 Infestation Steve Dewey
1459183 Infestation Steve Dewey
1624074 Infestation A native to Asia, is a serious problem in wheat producing areas of the United States. It hybridizes with wheat and outcompetes the crop for nutrients and water. Phil Westra
5225006 Plant(s) Richard Old
5225007 Plant(s) Richard Old
5225008 Plant(s) Richard Old
5225009 Plant(s) Richard Old
1149026 Plant(s) USDA APHIS PPQ Archive
5387072 Plant(s)

plants.

 Joseph M. DiTomaso
1624071 Seed(s) Native to Asia, has seeds that are similar in size and shape to wheat. This make contaminated shipments of wheat very difficult to clean. Phil Westra
5306051 Seed(s) Steve Hurst
5364429 Seed(s)

Seeds of jointed goatgrass (Aegilops cylindrica).

 Howard F. Schwartz
1459180 Seed(s) Steve Dewey
1459181 Seed(s) In wheat seed Steve Dewey
1459185 Seedling(s) Steve Dewey
5387074 Stem(s)

embedded spikelets.

 Joseph M. DiTomaso
5387075 Stem(s)

collar and sheath.

 Joseph M. DiTomaso


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